← View Generic B0491 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B0491: B0491: Power Window Circuit Malfunction

on 2021 Honda PASSPORT

Fix Cost

$100 - $500

Parts & Labor

Difficulty

3/5

1-2 hours

DIY Possible?

✅ Yes

Save money

Your Vehicle

2021 Honda

PASSPORT

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Important for 2021 Honda PASSPORT Owners

Before starting repairs, verify which engine your 2021 Honda PASSPORT has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does B0491 Mean on 2021 Honda PASSPORT?

The B0491 code indicates a problem with the power window circuit, which can cause windows to malfunction or not function at all.

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Symptoms

• Windows not moving
• stuck or slow to move
• intermittent window operation

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Common Causes

• Faulty window regulator
• damaged or worn-out window motor
• faulty window switch
• wiring issue

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How to Fix B0491 on 2021 Honda PASSPORT

1. Check window switch for proper operation and clean or replace if necessary. 2. Inspect window regulator for damage or wear and replace if necessary. 3. Test window motor for proper operation and replace if necessary. 4. Check wiring for damage or corrosion and repair or replace if necessary.

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Need Maintenance Info for Your PASSPORT?

Get oil capacity, filter specs, and torque settings for your specific 2021 Honda PASSPORT.

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Parts for 2021 Honda PASSPORT

window regulator Shop ↗ window motor Shop ↗ window switch Shop ↗ wiring harness Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B0491

B0489 Sequential Code

💡 Why These Codes Are Related:

• Similar Issues: Same root cause or component failure
• Related Problems: Often occur together due to system interactions
• Sequential Codes: Progressive failure stages or multiple sensors
• Same System: Components within the same automotive system